EP0316776A2 - Monoclonal antibodies to anthracyclines - Google Patents

Monoclonal antibodies to anthracyclines Download PDF

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Publication number
EP0316776A2
EP0316776A2 EP88118771A EP88118771A EP0316776A2 EP 0316776 A2 EP0316776 A2 EP 0316776A2 EP 88118771 A EP88118771 A EP 88118771A EP 88118771 A EP88118771 A EP 88118771A EP 0316776 A2 EP0316776 A2 EP 0316776A2
Authority
EP
European Patent Office
Prior art keywords
monoclonal antibodies
hybridomas
carrier
anthracyclines
cells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88118771A
Other languages
German (de)
French (fr)
Other versions
EP0316776A3 (en
EP0316776B1 (en
Inventor
Andrea Balsari
Maria Ines Colnaghi
Mario Ghione
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Istituto Nazionale per lo Studio e la Cura die Tumori
Original Assignee
Istituto Nazionale per lo Studio e la Cura die Tumori
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Istituto Nazionale per lo Studio e la Cura die Tumori filed Critical Istituto Nazionale per lo Studio e la Cura die Tumori
Priority to AT88118771T priority Critical patent/ATE103972T1/en
Publication of EP0316776A2 publication Critical patent/EP0316776A2/en
Publication of EP0316776A3 publication Critical patent/EP0316776A3/en
Application granted granted Critical
Publication of EP0316776B1 publication Critical patent/EP0316776B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/12Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from bacteria
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides

Definitions

  • the present invention concerns hybridomas secreting monoclonal antibodies able to selectively bind to doxoru­bicin as well as to analogues and derivatives thereof.
  • the invention concerns also the monoclonal antib­odies secreted by said hybridomas able to selectively bind to doxorubicin.
  • a further object of the invention is provided by diagnostic and/or therapeutic applications of the above cited monoclonal antibodies.
  • Said antibodies are secreted by hybrid cells, der­iving from the fusion of immune lymphocytes against the desired antigen with a line of myeloma cells having spe­cific characteristics, in order to impart immortality to the antibody producing lymphocyte cells.
  • the hybrid cells deriving from said fusion exhibit both the properties of lymphocytes of producing antibodies of a given specificity and the immortal char­acter of the parental tumor cell.
  • the hybrid cells are then cloned so as to obtain clones each deriving from a single cell, producing only one kind of antibody.
  • the selected clone secreting the desired antibody may be kept viable undefinitely both by transplanting it in vivo in athymic mice and cultivating it in vitro .
  • Doxorubicin, daunomycin and the semi-synthetic deri­vative epirubicin are drugs whose clinical effectiveness is widely known, belonging to the chemical class of anthracyclines; in addition to the above cited parent compounds, numerous derivatives have been synthetized aiming at increasing the therapeutic index.
  • the antibodies according to the invention have been obtained by immunizing BALB/c mice with doxorubicin or other anthracycline compound conjugated to a suitable carrier such as bovine serum albumine by means of carbodiimide (Hurxitz e coll., Cancer Res. 35; 1175, 1975).
  • the doxorubicin-carrier conjugate after emulsion in complete Freund's adjuvant, has been administered by intramuscular, subcutaneous routes in subplantar pads of inbred BALB/c mice.
  • the immunization has been repeated at the l4 th 25 th , 26 th , 27 th days.
  • a cellular suspension has been prepared from which red blood cells were removed by treatment with 0.17 M NH4Cl for 10′ at 4 C. 1.108 splenic cells, after washing with Hank's saline balanced solution, were placed in a test-tube together with 2x107 cells of NSl murine myeloma cells. This line of myeloma was cultured on RPMI 1640 medium containing 10% of fetal calf serum.
  • the NSl and splenic cells mixture has been then treated according to the method described by Kohler e Milstein. After hybridization, the cells, re-suspended on RPMI with 20% fetal calf serum, were distributed in cell culture, 4 8 wells micro-plates (Costar, Cambridge, Mass. U.S.A.) in amount of 400.000 cell per well to which 0.3 ml of RPMI medium were added. On the subsequent day, 0.3 ml of HAT solution were added to each well. The cells were cultured for 15 days, changing the medium after 7 days.
  • the surnatants of each well were then tested for the production of antibodies by immunoenzymatic test (ELISA) on the doxorubicin-carrier conjugate and on the carrier alone.
  • ELISA immunoenzymatic test
  • the hybridomas contained in the wells whose surnatant reacted only on the doxorubicin-carrier surn­atant were cloned by serial dilutions in 96 wells-plates in the presence of peritoneal cells of BALB/c mice as nutritive medium (Feeder-layer).
  • RPMI + HT medium J.W. Lifflefield, Science 145: 709-710, 1964
  • fetal serum for 5 days then with RPMI and fetal serum.
  • the products of the so cloned single hybridomas have been further characterized by radioisotopic binding test using as inhibitor doxorubicin itself and its analogues and derivatives, and some other chemotherapeutic agents.
  • Selected hyridomas were kept in vivo in peritoneal transplant in BALB/C mice pre-treated with 2,6,10,14-tetramethylpentadecane (pristane) in order to favour the ascitis formation.
  • the monoclonal antibodies obtained according to the invention may be used in the monitoring of the chemotherapeutic treatment or as histopathologic reagents for the determination of the drug in different tissues, according to usual methods.
  • the monoclonal antibodies of the invention may also be used to modify the toxicity, either systemic or local, of the drug or to carry it on the target cells or to act as reagents in chemical or physical processes intended to obtain anthracyclines derivatives or complexes thereof.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Peptides Or Proteins (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Monoclonal antibodies able to selectively bind to doxorubicin and its analogues and derivatives are disclosed.

Description

  • The present invention concerns hybridomas secreting monoclonal antibodies able to selectively bind to doxoru­bicin as well as to analogues and derivatives thereof.
  • The invention concerns also the monoclonal antib­odies secreted by said hybridomas able to selectively bind to doxorubicin.
  • A further object of the invention is provided by diagnostic and/or therapeutic applications of the above cited monoclonal antibodies.
  • The development of the somatic hybridization techn­ique by G. Kohler e C. Milstein (Nature, 256; 495-497, 1975) allowed the possibility of obtaining unlimited amounts of monoclonal antibodies, i.e. of antibodies having a unique and defined specificity, recognizing a single antigenic determinant.
  • Said antibodies are secreted by hybrid cells, der­iving from the fusion of immune lymphocytes against the desired antigen with a line of myeloma cells having spe­cific characteristics, in order to impart immortality to the antibody producing lymphocyte cells.
  • In fact, the hybrid cells deriving from said fusion, exhibit both the properties of lymphocytes of producing antibodies of a given specificity and the immortal char­acter of the parental tumor cell.
  • The hybrid cells are then cloned so as to obtain clones each deriving from a single cell, producing only one kind of antibody. The selected clone secreting the desired antibody may be kept viable undefinitely both by transplanting it in vivo in athymic mice and cultivating it in vitro.
  • Thus, a monospecific reagent, able to avoid cross-reactions typical of polyspecific sera which contain, in addition to the desired reagent, numerous antibody families with different specificities, will be always available in practically unlimited amounts.
  • There have been so far described monoclonal antib­odies specific for different antigens of bacterial, viral, tumoral, humoral (hormones, proteins) origin, used for instance for diagnostic purpose in immunoenzymatic systems or the like, for preparative purpose, for inst­ance for the purification of interferons, interleukins or even for therapeutic purposes, for instance in the extra-corporeal treatment of bone marrow to remove neopl­astic cells or as carriers in vivo of cytotoxic agents. According to the latter aspect, the use of antitumor drugs conjugated to monoclonal antibodies directed to tumoral antigens, has been proposed.
  • Very few if no example at all exist of monoclonal antibodies directed to low molecular weight compounds, poorly immunogenic, particularly of synthetic, semi-syn­thetic or fermentative (antibiotics) origin.
  • It has now been surprisingly found that it is pos­sible, by suitably modifying the somatic hybridisation technique according to the invention, to obtain hybrid­omas secreting antibodies able to selectively bind to doxorubicin as well as to analogues and derivatives.
  • Doxorubicin, daunomycin and the semi-synthetic deri­vative epirubicin are drugs whose clinical effectiveness is widely known, belonging to the chemical class of anthracyclines; in addition to the above cited parent compounds, numerous derivatives have been synthetized aiming at increasing the therapeutic index.
  • The availability of monoclonal antibodies specific to antigenic determinants of said anthracyclines compounds allow different analytic-diagnostic and/or therapeutic applications.
  • The antibodies according to the invention have been obtained by immunizing BALB/c mice with doxorubicin or other anthracycline compound conjugated to a suitable carrier such as bovine serum albumine by means of carbodiimide (Hurxitz e coll., Cancer Res. 35; 1175, 1975).
  • The doxorubicin-carrier conjugate, after emulsion in complete Freund's adjuvant, has been administered by intramuscular, subcutaneous routes in subplantar pads of inbred BALB/c mice.
  • The immunization has been repeated at the l4th 25th, 26th, 27th days.
  • For the somatic hybridization of spleens withdrawn from immune mice three days after the last boosting, a cellular suspension has been prepared from which red blood cells were removed by treatment with 0.17 M NH₄Cl for 10′ at 4 C. 1.10⁸ splenic cells, after washing with Hank's saline balanced solution, were placed in a test-tube together with 2x10⁷ cells of NSl murine myeloma cells. This line of myeloma was cultured on RPMI 1640 medium containing 10% of fetal calf serum.
  • The NSl and splenic cells mixture has been then treated according to the method described by Kohler e Milstein. After hybridization, the cells, re-suspended on RPMI with 20% fetal calf serum, were distributed in cell culture, 4 8 wells micro-plates (Costar, Cambridge, Mass. U.S.A.) in amount of 400.000 cell per well to which 0.3 ml of RPMI medium were added. On the subsequent day, 0.3 ml of HAT solution were added to each well. The cells were cultured for 15 days, changing the medium after 7 days.
  • The surnatants of each well were then tested for the production of antibodies by immunoenzymatic test (ELISA) on the doxorubicin-carrier conjugate and on the carrier alone. The hybridomas contained in the wells whose surnatant reacted only on the doxorubicin-carrier surn­atant were cloned by serial dilutions in 96 wells-plates in the presence of peritoneal cells of BALB/c mice as nutritive medium (Feeder-layer).
  • The RPMI medium added with HAT and fetal serum has been substituted with RPMI + HT medium (J.W. Lifflefield, Science 145: 709-710, 1964) and fetal serum for 5 days then with RPMI and fetal serum.
  • The products of the so cloned single hybridomas have been further characterized by radioisotopic binding test using as inhibitor doxorubicin itself and its analogues and derivatives, and some other chemotherapeutic agents.
  • In a series of monoclonal antibodies positive for doxorubicin, antibodies which are specifically directed to some antigenic determinants of the drug have been identified by the analysis of cross-reaction data with doxorubicin analogues, modified in one or more molecular sites.
  • Selected hyridomas were kept in vivo in peritoneal transplant in BALB/C mice pre-treated with 2,6,10,14-tetramethylpentadecane (pristane) in order to favour the ascitis formation. The monoclonal antibodies obtained according to the invention may be used in the monitoring of the chemotherapeutic treatment or as histopathologic reagents for the determination of the drug in different tissues, according to usual methods.
  • The monoclonal antibodies of the invention may also be used to modify the toxicity, either systemic or local, of the drug or to carry it on the target cells or to act as reagents in chemical or physical processes intended to obtain anthracyclines derivatives or complexes thereof.

Claims (4)

1. A process for the preparation of hybridomas secreting monoclonal antibodies able to selectively bind to anthracyclines compounds, characterized in that: (a) the fusion of splenic cells, immune against the anthracycline compound conjugated with a suitable carrier, with NSl myeloma is carried out in per se known way; (b) the surnatants of the cultures of the so obtained hybridomas are tested in parallel on the carrier-anthracycline conjugate and on the carrier to discard hybridomas reactive against the carrier itself; (c) the so selected hybridomas are further characterized by inhibition test with the anthracycline compound, by raioisotopic binding test.
EP88118771A 1987-11-17 1988-11-11 Monoclonal antibodies to anthracyclines Expired - Lifetime EP0316776B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88118771T ATE103972T1 (en) 1987-11-17 1988-11-11 MONOCLONAL ANTIBODIES AGAINST ANTHRACYCLINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22661/87A IT1223136B (en) 1987-11-17 1987-11-17 MONOCLONAL ANTIBODIES CAPABLE OF BINDING SELECTIVELY TO DOXORUBICIN AND ANALOGS AND DERIVATIVES
IT2266187 1987-11-17

Publications (3)

Publication Number Publication Date
EP0316776A2 true EP0316776A2 (en) 1989-05-24
EP0316776A3 EP0316776A3 (en) 1991-05-22
EP0316776B1 EP0316776B1 (en) 1994-04-06

Family

ID=11198987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118771A Expired - Lifetime EP0316776B1 (en) 1987-11-17 1988-11-11 Monoclonal antibodies to anthracyclines

Country Status (7)

Country Link
US (1) US5286851A (en)
EP (1) EP0316776B1 (en)
JP (1) JPH022394A (en)
AT (1) ATE103972T1 (en)
DE (1) DE3888924T2 (en)
ES (1) ES2063017T3 (en)
IT (1) IT1223136B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439048A3 (en) * 1990-01-26 1991-09-11 Ist Naz Stud Cura Dei Tumori Monoclonal antibody recognizing anthracycline glycoside specific epitope and hybridoma secerning said antibody
EP0503484A2 (en) * 1991-03-12 1992-09-16 Istituto Nazionale Per Lo Studio E La Cura Dei Tumori Monoclonal antibodies as antidotes
WO2006104970A1 (en) * 2005-03-30 2006-10-05 Saladax Biomedical Inc. Doxorubicin immunoassay

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020109552A1 (en) * 2000-06-02 2002-08-15 Tran Duke T. System and method of tuning a voltage controlled oscillator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122372A (en) * 1983-12-05 1985-06-29 Tsunehiro Kitagawa Reagent for quantitative determination of acralvicine
EP0203238A1 (en) * 1985-01-24 1986-12-03 Quidel Apparatus for use in detecting ligands in solution

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL62965A0 (en) * 1980-07-17 1981-07-31 Scripps Miles Lab Inc Monoclonal antibodies to drugs and theri production
US4517289A (en) * 1982-08-18 1985-05-14 Brigham And Women's Hospital Monoclonal antibodies for human tissue cross-matching
GB8408193D0 (en) * 1984-03-30 1984-05-10 Cambridge Patent Dev Antibodies

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122372A (en) * 1983-12-05 1985-06-29 Tsunehiro Kitagawa Reagent for quantitative determination of acralvicine
EP0203238A1 (en) * 1985-01-24 1986-12-03 Quidel Apparatus for use in detecting ligands in solution

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 102, no. 13, 1st April 1985, page 34, abstract no. 105873q, Columbus, Ohio, US; B. LESUR et al.: "Covalent linkage of anthracyclines to macromolecular carriers", & PROTIDES BIOL. FLUIDS 1984 (PUB. 1985). 32, 437-40 *
INT. J. CANCER, vol. 42, 1988, pages 798-802, Alan R. Liss, Inc.; A. BALSARI et al.: "Monoclonal antibodies against doxorubicin" *
NATURE, vol. 256, 7th August 1975, pages 495-497; G. K\HLER et al.: "Continuous cultures of fused cells secreting antibody of predefined specificity" *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 281 (P-403)[2004], 8th November 1985; & JP-A-60 122 372 (TSUNEHIRO KITAGAWA) 29-06-1985 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439048A3 (en) * 1990-01-26 1991-09-11 Ist Naz Stud Cura Dei Tumori Monoclonal antibody recognizing anthracycline glycoside specific epitope and hybridoma secerning said antibody
EP0503484A2 (en) * 1991-03-12 1992-09-16 Istituto Nazionale Per Lo Studio E La Cura Dei Tumori Monoclonal antibodies as antidotes
EP0503484A3 (en) * 1991-03-12 1993-06-02 Istituto Nazionale Per Lo Studio E La Cura Dei Tumori Monoclonal antibodies as antidotes
WO2006104970A1 (en) * 2005-03-30 2006-10-05 Saladax Biomedical Inc. Doxorubicin immunoassay
US7569358B2 (en) 2005-03-30 2009-08-04 Saladax Biomedical Inc. Doxorubicin immunoassay
US8053205B2 (en) 2005-03-30 2011-11-08 Saladax Biomedical Inc. Doxorubicin immunoassay
US8084586B2 (en) 2005-03-30 2011-12-27 Saladax Biomedical, Inc. Doxorubicin immunoassay

Also Published As

Publication number Publication date
ES2063017T3 (en) 1995-01-01
DE3888924D1 (en) 1994-05-11
US5286851A (en) 1994-02-15
IT8722661A0 (en) 1987-11-17
IT1223136B (en) 1990-09-12
EP0316776A3 (en) 1991-05-22
ATE103972T1 (en) 1994-04-15
EP0316776B1 (en) 1994-04-06
JPH022394A (en) 1990-01-08
DE3888924T2 (en) 1994-08-11

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